A cadaveric study of the anatomical variations of the lumbar plexus with clinical implications

Pawaree Nontasaen, Srijit Das, Chote Nisung, Apichat Sinthubua, Pasuk Mahakkanukrauh

Research output: Contribution to journalArticle

Abstract

Introduction: The main objective was to study the normal and abnormal lumbar plexus. Methods: We analyzed 131 lumbar plexuses from 68 embalmed cadavers at the Cadaveric Surgical Training Center, Faculty of Medicine, Chiang Mai University in the period between April 2012 and June 2013. Morphometric measurements were taken. Results: The lumbar plexus was located within psoas major muscle (100.0%). The iliohypogastric nerve originated from the ventral rami of L1 (96.5%) followed by the ilioinguinal nerve (90.1%). The genitofemoral nerves originated from the ventral rami of L1 and L2 (98.5%). The lateral femoral cutaneous nerves (LFCN) originated from the ventral rami of L2 and L3 (84.0%). The femoral and obturator nerves originated from ventral rami of L2-L3-L4 (100.0%). The distance between the origin of LFCN to L3 transverse process was at an average 1.96±0.67cm. The distance from nerve to L4 transverse process was above L3 and between L3 and L4 transverse process at an average 2.8±1.63cm. The distance between femoral nerve to L3 and L4 transverse process was inferior to L4 transverse process at an average of 5.13±2.18cm and 2.53±2.26cm, respectively. The distance between obturator nerve to L3 and L4 transverse process was found inferior to L4 transverse process at an average 5.42±1.73cm and 2.75±1.75cm, respectively. Conclusion: The knowledge of anatomical variations of LP may be important for administration of local anaesthetic agents and avoid any inadvertent injuries.

Original languageEnglish
JournalJournal of the Anatomical Society of India
DOIs
Publication statusAccepted/In press - 6 Oct 2015

Fingerprint

Lumbosacral Plexus
Femoral Nerve
Obturator Nerve
Psoas Muscles
Skin
Local Anesthetics
Cadaver
Anesthetics
Medicine
Wounds and Injuries

Keywords

  • Anatomy
  • Clinical importance
  • Lumbar plexus
  • Variations

ASJC Scopus subject areas

  • Anatomy
  • Pathology and Forensic Medicine

Cite this

A cadaveric study of the anatomical variations of the lumbar plexus with clinical implications. / Nontasaen, Pawaree; Das, Srijit; Nisung, Chote; Sinthubua, Apichat; Mahakkanukrauh, Pasuk.

In: Journal of the Anatomical Society of India, 06.10.2015.

Research output: Contribution to journalArticle

@article{386451c3ce7845ef8f3dc8159dc29aa3,
title = "A cadaveric study of the anatomical variations of the lumbar plexus with clinical implications",
abstract = "Introduction: The main objective was to study the normal and abnormal lumbar plexus. Methods: We analyzed 131 lumbar plexuses from 68 embalmed cadavers at the Cadaveric Surgical Training Center, Faculty of Medicine, Chiang Mai University in the period between April 2012 and June 2013. Morphometric measurements were taken. Results: The lumbar plexus was located within psoas major muscle (100.0{\%}). The iliohypogastric nerve originated from the ventral rami of L1 (96.5{\%}) followed by the ilioinguinal nerve (90.1{\%}). The genitofemoral nerves originated from the ventral rami of L1 and L2 (98.5{\%}). The lateral femoral cutaneous nerves (LFCN) originated from the ventral rami of L2 and L3 (84.0{\%}). The femoral and obturator nerves originated from ventral rami of L2-L3-L4 (100.0{\%}). The distance between the origin of LFCN to L3 transverse process was at an average 1.96±0.67cm. The distance from nerve to L4 transverse process was above L3 and between L3 and L4 transverse process at an average 2.8±1.63cm. The distance between femoral nerve to L3 and L4 transverse process was inferior to L4 transverse process at an average of 5.13±2.18cm and 2.53±2.26cm, respectively. The distance between obturator nerve to L3 and L4 transverse process was found inferior to L4 transverse process at an average 5.42±1.73cm and 2.75±1.75cm, respectively. Conclusion: The knowledge of anatomical variations of LP may be important for administration of local anaesthetic agents and avoid any inadvertent injuries.",
keywords = "Anatomy, Clinical importance, Lumbar plexus, Variations",
author = "Pawaree Nontasaen and Srijit Das and Chote Nisung and Apichat Sinthubua and Pasuk Mahakkanukrauh",
year = "2015",
month = "10",
day = "6",
doi = "10.1016/j.jasi.2016.04.003",
language = "English",
journal = "Journal of the Anatomical Society of India",
issn = "0003-2778",
publisher = "Anatomical Society of India",

}

TY - JOUR

T1 - A cadaveric study of the anatomical variations of the lumbar plexus with clinical implications

AU - Nontasaen, Pawaree

AU - Das, Srijit

AU - Nisung, Chote

AU - Sinthubua, Apichat

AU - Mahakkanukrauh, Pasuk

PY - 2015/10/6

Y1 - 2015/10/6

N2 - Introduction: The main objective was to study the normal and abnormal lumbar plexus. Methods: We analyzed 131 lumbar plexuses from 68 embalmed cadavers at the Cadaveric Surgical Training Center, Faculty of Medicine, Chiang Mai University in the period between April 2012 and June 2013. Morphometric measurements were taken. Results: The lumbar plexus was located within psoas major muscle (100.0%). The iliohypogastric nerve originated from the ventral rami of L1 (96.5%) followed by the ilioinguinal nerve (90.1%). The genitofemoral nerves originated from the ventral rami of L1 and L2 (98.5%). The lateral femoral cutaneous nerves (LFCN) originated from the ventral rami of L2 and L3 (84.0%). The femoral and obturator nerves originated from ventral rami of L2-L3-L4 (100.0%). The distance between the origin of LFCN to L3 transverse process was at an average 1.96±0.67cm. The distance from nerve to L4 transverse process was above L3 and between L3 and L4 transverse process at an average 2.8±1.63cm. The distance between femoral nerve to L3 and L4 transverse process was inferior to L4 transverse process at an average of 5.13±2.18cm and 2.53±2.26cm, respectively. The distance between obturator nerve to L3 and L4 transverse process was found inferior to L4 transverse process at an average 5.42±1.73cm and 2.75±1.75cm, respectively. Conclusion: The knowledge of anatomical variations of LP may be important for administration of local anaesthetic agents and avoid any inadvertent injuries.

AB - Introduction: The main objective was to study the normal and abnormal lumbar plexus. Methods: We analyzed 131 lumbar plexuses from 68 embalmed cadavers at the Cadaveric Surgical Training Center, Faculty of Medicine, Chiang Mai University in the period between April 2012 and June 2013. Morphometric measurements were taken. Results: The lumbar plexus was located within psoas major muscle (100.0%). The iliohypogastric nerve originated from the ventral rami of L1 (96.5%) followed by the ilioinguinal nerve (90.1%). The genitofemoral nerves originated from the ventral rami of L1 and L2 (98.5%). The lateral femoral cutaneous nerves (LFCN) originated from the ventral rami of L2 and L3 (84.0%). The femoral and obturator nerves originated from ventral rami of L2-L3-L4 (100.0%). The distance between the origin of LFCN to L3 transverse process was at an average 1.96±0.67cm. The distance from nerve to L4 transverse process was above L3 and between L3 and L4 transverse process at an average 2.8±1.63cm. The distance between femoral nerve to L3 and L4 transverse process was inferior to L4 transverse process at an average of 5.13±2.18cm and 2.53±2.26cm, respectively. The distance between obturator nerve to L3 and L4 transverse process was found inferior to L4 transverse process at an average 5.42±1.73cm and 2.75±1.75cm, respectively. Conclusion: The knowledge of anatomical variations of LP may be important for administration of local anaesthetic agents and avoid any inadvertent injuries.

KW - Anatomy

KW - Clinical importance

KW - Lumbar plexus

KW - Variations

UR - http://www.scopus.com/inward/record.url?scp=84969988679&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84969988679&partnerID=8YFLogxK

U2 - 10.1016/j.jasi.2016.04.003

DO - 10.1016/j.jasi.2016.04.003

M3 - Article

JO - Journal of the Anatomical Society of India

JF - Journal of the Anatomical Society of India

SN - 0003-2778

ER -